E1 + E2 + E3 + E4 + E5 = Total = 5*16 = 80
From (1), it's not clear which of the employees had the increase and decrease and without knowing the exact number of leaves taken by each employee, we can't increment it accurately.
From (2), regardless of any employee taking any number of leaves, It will be Total + 30 - 10 = 80 + 10 = 90
Hence the average this year = 90/5 = 18, so the answer is B.
Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)
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